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Avalanches, Scaling and Coherent Noise | | M. E. J. Newman
; Kim Sneppen
; | | Date: |
10 Jun 1996 | | Journal: | Phys. Rev. E 54, 6226 (1996) | | Subject: | cond-mat | | Affiliation: | Cornell University) and Kim Sneppen (Nordita | | Abstract: | We present a simple model of a dynamical system driven by externally-imposed coherent noise. Although the system never becomes critical in the sense of possessing spatial correlations of arbitrarily long range, it does organize into a stationary state characterized by avalanches with a power-law size distribution. We explain the behavior of the model within a time-averaged approximation, and discuss its potential connection to the dynamics of earthquakes, the Gutenberg-Richter law, and to recent experiments on avalanches in rice piles. | | Source: | arXiv, cond-mat/9606066 | | Services: | Forum | Review | PDF | Favorites | |
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